Damper for stove-pipes



(No Model.)

1 W. H. BERGER.

DAMPER FOR STOVE PIPES. No. 366,809. Patented m 19, 1887..

Nv PETERS. Pnnwuhn m hm. Wnhinghm. D. C.

UNITED STATES PATENT OFFICE.

XVILLTAM H. BERGER, OF PHILADELPHIA, PENNSYLVANIA.

DAMPER FOR STOVE-PIPES.

SPECIFICATION forming part of Letters Patent No. 366,809, dated July 19, 1887.

Application filed March 24, 1887. Serial No. 239,289.

To aZL whom it may concern:

Beitknownthat I, \VILLIAM H. BERGER, a

citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Dampers for Stove-Pipes; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is a plan View, partially in section, and Figs. 2, 8, and 4.- detail views, of the damper.

This invention has relation to dampers for smoke or hot-air fines, and has for its object to provide a damper which will be simple in construction, easy to insert in or remove from the flue, and which shall be very inexpensive.

This invention consists in providing a flat damper having journals east therewith with a handle of peculiar construction, which can be attached'to or removed from the damper by the manipulation of a single screw.

This invention further consists in the construction, combination, and arrangement of parts, more fully described hereinafter, and specifically pointed out in the claims.

Referring to the accompanying drawings, A represents the damper proper, which is a circular plate of thin cast metal, with journals to a and shoulders b b cast integral therewith. The journals are formed either round or sq uare in cross-section, or one of them can be round and the other square, the square journal serving better for holding the handle firmly in position.

The handle 13 consists of three pieces C D E, E being a hollow wood hand-piece and O D being cast-iron pieces of the form shown in de tail in Fig. 2 of the drawings, having pins 0 east integral therewith, their lower ends being cast with the square recesses d, screwholes f, lug g, and recess h, the two pieces, when placed together, forming a key with a square opening, as shown, the hand-piece E being held iu position between the upper ends of the key by means of the pins 0 entering the recess in the said hand-piece. A screw, 2', and nut is hold together the three pieces (No model.

forming thehandle, and also serve to clamp the key upon thejournal of the damper.

If desired, two handles can be applied to each damper, one on each side. In this case both the journals are made square; but where 5 only one handle is to be used one ol'the jour nals is preferably made round.

A fiat spring,l, may be used between the outside of the flue and the handle of the damper to hold the damper in any position to which it is turned; or, as shown in Fig. 3 ol" the drawings, a coiled spring, M, will answer the same purpose.

XVhen a coiled spring is to be used in connection with my damper, the spring may be placed between the ends of the key and the washer m; or, as shown in Fig. 3 of the draw ings, the spring may be coiled around the lower part of the key, an annular shoulder being cast integral therewith, for the purpose of retaining said spring in a compressed condition, said shoulder being designated by the letter I)".

As will be seen, the attachment of the handle to the damper or its removal therefronris 7 etl'ected by loosening or tightening the screw 2', and the damper and handle, requiring no machine work or finishing to complete them, can be producedin a very cheap and inexpeir sive manner. The two journals a a, being of the same size, a single punch will suffice to produce the openingsin the pipe to receive them, while the shoulders b b will prevent the escape of smoke or hot air around the journals, this point being of special impor- 8 tance.

What I claim as my invention is as follows:

1. The combination, with a flat cast-iron damper having journals formed integral there with, of a handle formed of two similarlyshaped pieces and a hand-piece, said handle being attached to the damper-plate by clamping it upon one of said journals by means of a screw passing through the handle, as set forth.

2. The combination,with a cast-iron damper and a handle clamped thereto, of a spring held between the handle and damper to restrain the movement of the damper, substantially as shown and described.

3. The combination, with a flat east-iron roo damper, A, having journals a a and shoul- 5. The combination, with a damper-plate, of a handle comprising a wooden handpiece and two key-pieces provided with lugs for retaining the hand-piece in place without binding it, substantially as described.

In testimony that I" claim the foregoing I have hereunto set my hand this 23d day of March, A. D. 1887.

WILLIAM H. BERGER.

Witnesses:

WILL H. POWELL, R. DALI; SPARHAWK. 

